Märzenkeller, Austria Projects Description The old gallery system (≈ 2000 m length) had to be repaired/stabilized. Originally steel fibres were planned. But since the gallery will be partly open to the public and sticking out steel fibres can cause injuries, the designer decided to switch to the synthetic high-performance fibre Concrix ES. Advantages of Concrix…
Hydro Power Plant Station «Berschnerbach», Berschis (CH) Projects Description The tunnel for the pressure water pipe of the hydro power plant station «Berschnerbach» (≈ 1300 m length) with a gradient from 20% (pipe gallery) up to 142% for the inclined shaft. The permanent inner lining sprayed concrete is only reinforced with the synthetic high-performance fibre…
Hydropower plant Projects Application Shotcrete tunnel Country Costa Rica Location Reventazon Year 2013 Additional steel reinforcement No Fibre Concrix ES
Hydropower plant Projects Application Shotcrete tunnel Country Costa Rica Location Cachi Year 2013 Additional steel reinforcement No Fibre Concrix ES
Excavation, shotcrete infill – Biology Centre University Vienna (AT) Projects Description The excavation stabilisation made with discontinuous bored pile walls with shotcrete infilling for the new Biology Centre for the University of Vienna. The originally planned reinforcement for infilling was AQ 65 steel mesh (332 mm²/m), which was totally replaced by using macro fiber reinforced…
Exploration Tunnel Feldkirch City Tunnel (AT) Projects Description The construction of the 1212-meter-long exploration tunnel Tisis, as part of the Feldkirch City Tunnel project in Austria, was initiated by the Allianz EKS Tisis Jägerbau, Strabag, State of Vorarlberg. To fulfil its safety function after excavation and also as part of the permanent inner shell, macro-fibre…
SiSto Carpeting Tunnel (CH) Projects Description The construction of the 2036 m long road safety tunnel Crapteig started 2018 and finished 2022. The use of synthetic fibre reinforced sprayed concrete for the initial protection and for the sprayed permanent inner lining allowed a progress of 24 m/week compared to the originally steel reinforced (mesh) solution…
Infill of bored pile wall Liechtensteiner Rotkreuz/FL Projects Description The excavation pit shoring by means of a broken up bored pile wall and shotcrete infill for the new building of the Liechtenstein Red Cross and the Vaduz building administration. The originally planned reinforcement for the infill was a B257 steel mesh (2.57 cm²/m) on the…